@s77rt Please copy/paste the Reviewer Checklist from here into a new comment on this PR and complete it. If you have the K2 extension, you can simply click: [this button]

Reviewer Checklist

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Screenshots/Videos

@wildan-m Can you check why on native the attachment changes after getting online?

Can you check why on native the attachment changes after getting online?

that's pretty weird.

@s77rt do you know how to make metro keep logging the log after re-connect?

@s77rt I've created this simple reproduction step, even without scrolling from reanimated, the pager view itself can't properly work if we replace the pager items without re-mounting.

I think we don't need to report the issue as there are similar issues open.
callstack/react-native-pager-view#597
callstack/react-native-pager-view#791

import React from 'react';
import { useState } from 'react';
import { Button, SafeAreaView, Text, View, StyleSheet } from 'react-native';
import PagerView from 'react-native-pager-view';

const ids = ['1', '2', '3'];

function getNewArray() {
  const newArray = [...ids];
  newArray[2] = Math.random().toString(36).substring(7); // Generate a random string
  return newArray;
}
export const BasicPagerViewExample = () => {

  const [pagesContent, setPagesContent] = useState<string[]>(getNewArray());
  const [page, setPage] = useState<number>(2);

  console.log(pagesContent);

  return (
    <SafeAreaView style={{ flex: 1 }}>
      <Text style={{ textAlign: 'center' }}>{pagesContent.length}</Text>
      <PagerView orientation="horizontal" style={{ flex: 1, backgroundColor: 'yellow' }} initialPage={page}
        onPageSelected={(e) => {
          console.log('onPageSelected ~ e.nativeEvent.position:', e.nativeEvent.position);
        }}
      >
        {pagesContent.map((content) => (
          <View key={content} style={{ flex: 1,backgroundColor: 'green' }}>
            <View style={{ flex: 1, justifyContent: 'center', alignItems: 'center' , backgroundColor:'red'}}>
              <Text style={{ fontSize: 30 }}>{content}</Text>
            </View>
          </View>
        ))}
      </PagerView>
      <Button
        title={'Replace third page content'}
        onPress={() => {
          setPagesContent(getNewArray());
          setPage(2);
        }}
      />
    </SafeAreaView>
  );
};

export default BasicPagerViewExample

@wildan-m In main if we follow the same steps in native, the attachment will get dismissed, but now it will change to another one? Is that correct? If so I think we should fix the other bug separately since it's not a true regression (the flow is already broken on main)

In main if we follow the same steps in native, the attachment will get dismissed, but now it will change to another one? Is that correct?

correct

I think we should fix the other bug separately since it's not a true regression (the flow is already broken on main)

@s77rt that's ok, another option is to temporarily implement the component's key solution until upstream fix resolved. I believe the upstream issue is not a simple fix since many people experience it and the mentioned similar issues is open for a long time.

@wildan-m We should not go with workarounds. Fixing this upstream should be the way to go. For now can yoo please revert the recent changed and fix conflicts?

Can we avoid comparing with -1 and instead just access the attachment array directly

@s77rt I think we can't avoid comparing to -1 after this new eslint rule applied, access array using at(-1) will get the last array item

✋ This PR was not deployed to staging yet because QA is ongoing. It will be automatically deployed to staging after the next production release.

🚀 Deployed to staging by https://github.com/rlinoz in version: 9.0.45-1 🚀

🚀 Deployed to production by https://github.com/thienlnam in version: 9.0.45-4 🚀